What Does B1455 Mean?
This code indicates the Body Control Module (BCM) has detected an open circuit in the wiper washer fluid level indicator lamp circuit. The BCM monitors the circuit that controls the dashboard warning lamp that alerts the driver when windshield washer fluid is low. An open circuit means there is a break in the electrical path preventing the lamp from functioning properly.
Common Causes
35%
Failed or burned out washer fluid level indicator bulb in the instrument cluster
30%
Damaged wiring harness or connector between BCM and instrument cluster with broken wires or corroded terminals
20%
Failed instrument cluster circuit board or internal open circuit within cluster
10%
Faulty Body Control Module with failed output driver circuit
5%
Blown fuse or damaged fuse holder in instrument panel lighting circuit
Diagnostic Steps
1
Step 1: Perform visual inspection of instrument cluster to verify washer fluid lamp is not illuminated during bulb check at key-on. Check instrument panel fuse box for any blown fuses related to instrument cluster or warning lamp circuits using multimeter continuity test.
2
Step 2: Using a digital multimeter, backprobe the washer fluid lamp circuit at the instrument cluster connector. Measure voltage with key on - should see battery voltage when BCM commands lamp on. If no voltage present, circuit open between BCM and cluster.
3
Step 3: Inspect wiring harness from BCM to instrument cluster for chafing, cuts, pinched wires, or corroded connectors. Pay special attention to areas where harness passes through firewall, door jambs, or around steering column. Check connector terminal tension and corrosion.
4
Step 4: If voltage is present at cluster connector, remove instrument cluster and inspect bulb socket, bulb, or LED circuit board for damage, corrosion, or failed components. Test bulb continuity with multimeter or replace with known-good bulb.
5
Step 5: If all wiring and bulb check good, use bidirectional controls in scan tool to command washer fluid lamp on/off. Monitor BCM output status. If BCM shows output commanded but no voltage at cluster, BCM output driver may be failed.
6
Step 6: Clear codes and verify repair by commanding lamp operation multiple times and road testing. Monitor for code return and verify lamp illuminates properly during bulb check and when fluid level is actually low.
Estimated Repair Cost
$75 - $450
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected an open circuit in the wiper washer fluid level indicator lamp circuit. The BCM monitors the circuit that controls the dashboard warning lamp that alerts the driver when windshield washer fluid is low. An open circuit means there is a br...
The most common cause of B1455 (Wiper Washer Fluid Lamp Circuit Open) is: Failed or burned out washer fluid level indicator bulb in the instrument cluster
Typical repair costs for B1455 range from $75 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving. This only affects the warning lamp that alerts you to low washer fluid level. While not a safety hazard, reduced visibility from inability to clean windshield could become a safety concern if washer fluid runs empty unnoticed.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B1455 to identify the root cause.
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Quick Info
Category
Body
System
Body Control and Warning Lamp System
Difficulty
Type
Manufacturer
Recommended Tools
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